A logo preview can look polished yet fail at the sizes and formats a brand needs. Start with a short brief: name, audience, tone, required colors, and where the mark will appear. Generate several options, then compare their legibility at favicon size, in one color, and against both light and dark backgrounds.
Before using an output, inspect the exported dimensions, transparent background, editable format if offered, and any usage rights stated by the service. Similarity to an existing mark needs independent review; a generated result is not proof of originality or trademark availability. Share the brief and the specific export that did or did not meet it, without posting confidential brand plans.